switch to go vendoring
This commit is contained in:
Michael Barz
+191
@@ -0,0 +1,191 @@
|
||||
|
||||
Apache License
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Version 2.0, January 2004
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http://www.apache.org/licenses/
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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END OF TERMS AND CONDITIONS
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Copyright 2015 Asim Aslam.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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+288
@@ -0,0 +1,288 @@
|
||||
// Package memory provides an in-memory registry
|
||||
package memory
|
||||
|
||||
import (
|
||||
"context"
|
||||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/google/uuid"
|
||||
"go-micro.dev/v4/logger"
|
||||
"go-micro.dev/v4/registry"
|
||||
)
|
||||
|
||||
var (
|
||||
sendEventTime = 10 * time.Millisecond
|
||||
ttlPruneTime = time.Second
|
||||
)
|
||||
|
||||
type node struct {
|
||||
*registry.Node
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||||
TTL time.Duration
|
||||
LastSeen time.Time
|
||||
}
|
||||
|
||||
type record struct {
|
||||
Name string
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||||
Version string
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||||
Metadata map[string]string
|
||||
Nodes map[string]*node
|
||||
Endpoints []*registry.Endpoint
|
||||
}
|
||||
|
||||
type Registry struct {
|
||||
options registry.Options
|
||||
|
||||
sync.RWMutex
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||||
records map[string]map[string]*record
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||||
watchers map[string]*Watcher
|
||||
}
|
||||
|
||||
func NewRegistry(opts ...registry.Option) registry.Registry {
|
||||
options := registry.Options{
|
||||
Context: context.Background(),
|
||||
Logger: logger.DefaultLogger,
|
||||
}
|
||||
|
||||
for _, o := range opts {
|
||||
o(&options)
|
||||
}
|
||||
|
||||
records := getServiceRecords(options.Context)
|
||||
if records == nil {
|
||||
records = make(map[string]map[string]*record)
|
||||
}
|
||||
|
||||
reg := &Registry{
|
||||
options: options,
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||||
records: records,
|
||||
watchers: make(map[string]*Watcher),
|
||||
}
|
||||
|
||||
go reg.ttlPrune()
|
||||
|
||||
return reg
|
||||
}
|
||||
|
||||
func (m *Registry) ttlPrune() {
|
||||
prune := time.NewTicker(ttlPruneTime)
|
||||
defer prune.Stop()
|
||||
|
||||
for {
|
||||
select {
|
||||
case <-prune.C:
|
||||
m.Lock()
|
||||
for name, records := range m.records {
|
||||
for version, record := range records {
|
||||
for id, n := range record.Nodes {
|
||||
if n.TTL != 0 && time.Since(n.LastSeen) > n.TTL {
|
||||
m.options.Logger.Logf(logger.DebugLevel, "Registry TTL expired for node %s of service %s", n.Id, name)
|
||||
delete(m.records[name][version].Nodes, id)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
m.Unlock()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (m *Registry) sendEvent(r *registry.Result) {
|
||||
m.RLock()
|
||||
watchers := make([]*Watcher, 0, len(m.watchers))
|
||||
for _, w := range m.watchers {
|
||||
watchers = append(watchers, w)
|
||||
}
|
||||
m.RUnlock()
|
||||
|
||||
for _, w := range watchers {
|
||||
select {
|
||||
case <-w.exit:
|
||||
m.Lock()
|
||||
delete(m.watchers, w.id)
|
||||
m.Unlock()
|
||||
default:
|
||||
select {
|
||||
case w.res <- r:
|
||||
case <-time.After(sendEventTime):
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (m *Registry) Init(opts ...registry.Option) error {
|
||||
for _, o := range opts {
|
||||
o(&m.options)
|
||||
}
|
||||
|
||||
// add services
|
||||
m.Lock()
|
||||
defer m.Unlock()
|
||||
|
||||
records := getServiceRecords(m.options.Context)
|
||||
for name, record := range records {
|
||||
// add a whole new service including all of its versions
|
||||
if _, ok := m.records[name]; !ok {
|
||||
m.records[name] = record
|
||||
continue
|
||||
}
|
||||
// add the versions of the service we dont track yet
|
||||
for version, r := range record {
|
||||
if _, ok := m.records[name][version]; !ok {
|
||||
m.records[name][version] = r
|
||||
continue
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Registry) Options() registry.Options {
|
||||
return m.options
|
||||
}
|
||||
|
||||
func (m *Registry) Register(s *registry.Service, opts ...registry.RegisterOption) error {
|
||||
m.Lock()
|
||||
defer m.Unlock()
|
||||
log := m.options.Logger
|
||||
|
||||
var options registry.RegisterOptions
|
||||
for _, o := range opts {
|
||||
o(&options)
|
||||
}
|
||||
|
||||
r := serviceToRecord(s, options.TTL)
|
||||
|
||||
if _, ok := m.records[s.Name]; !ok {
|
||||
m.records[s.Name] = make(map[string]*record)
|
||||
}
|
||||
|
||||
if _, ok := m.records[s.Name][s.Version]; !ok {
|
||||
m.records[s.Name][s.Version] = r
|
||||
log.Logf(logger.DebugLevel, "Registry added new service: %s, version: %s", s.Name, s.Version)
|
||||
go m.sendEvent(®istry.Result{Action: "update", Service: s})
|
||||
return nil
|
||||
}
|
||||
|
||||
addedNodes := false
|
||||
for _, n := range s.Nodes {
|
||||
if _, ok := m.records[s.Name][s.Version].Nodes[n.Id]; !ok {
|
||||
addedNodes = true
|
||||
metadata := make(map[string]string)
|
||||
for k, v := range n.Metadata {
|
||||
metadata[k] = v
|
||||
m.records[s.Name][s.Version].Nodes[n.Id] = &node{
|
||||
Node: ®istry.Node{
|
||||
Id: n.Id,
|
||||
Address: n.Address,
|
||||
Metadata: metadata,
|
||||
},
|
||||
TTL: options.TTL,
|
||||
LastSeen: time.Now(),
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if addedNodes {
|
||||
log.Logf(logger.DebugLevel, "Registry added new node to service: %s, version: %s", s.Name, s.Version)
|
||||
go m.sendEvent(®istry.Result{Action: "update", Service: s})
|
||||
return nil
|
||||
}
|
||||
|
||||
// refresh TTL and timestamp
|
||||
for _, n := range s.Nodes {
|
||||
log.Logf(logger.DebugLevel, "Updated registration for service: %s, version: %s", s.Name, s.Version)
|
||||
m.records[s.Name][s.Version].Nodes[n.Id].TTL = options.TTL
|
||||
m.records[s.Name][s.Version].Nodes[n.Id].LastSeen = time.Now()
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Registry) Deregister(s *registry.Service, opts ...registry.DeregisterOption) error {
|
||||
m.Lock()
|
||||
defer m.Unlock()
|
||||
|
||||
log := m.options.Logger
|
||||
|
||||
if _, ok := m.records[s.Name]; ok {
|
||||
if _, ok := m.records[s.Name][s.Version]; ok {
|
||||
for _, n := range s.Nodes {
|
||||
if _, ok := m.records[s.Name][s.Version].Nodes[n.Id]; ok {
|
||||
log.Logf(logger.DebugLevel, "Registry removed node from service: %s, version: %s", s.Name, s.Version)
|
||||
delete(m.records[s.Name][s.Version].Nodes, n.Id)
|
||||
}
|
||||
}
|
||||
if len(m.records[s.Name][s.Version].Nodes) == 0 {
|
||||
delete(m.records[s.Name], s.Version)
|
||||
log.Logf(logger.DebugLevel, "Registry removed service: %s, version: %s", s.Name, s.Version)
|
||||
}
|
||||
}
|
||||
if len(m.records[s.Name]) == 0 {
|
||||
delete(m.records, s.Name)
|
||||
log.Logf(logger.DebugLevel, "Registry removed service: %s", s.Name)
|
||||
}
|
||||
go m.sendEvent(®istry.Result{Action: "delete", Service: s})
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (m *Registry) GetService(name string, opts ...registry.GetOption) ([]*registry.Service, error) {
|
||||
m.RLock()
|
||||
defer m.RUnlock()
|
||||
|
||||
records, ok := m.records[name]
|
||||
if !ok {
|
||||
return nil, registry.ErrNotFound
|
||||
}
|
||||
|
||||
services := make([]*registry.Service, len(m.records[name]))
|
||||
i := 0
|
||||
for _, record := range records {
|
||||
services[i] = recordToService(record)
|
||||
i++
|
||||
}
|
||||
|
||||
return services, nil
|
||||
}
|
||||
|
||||
func (m *Registry) ListServices(opts ...registry.ListOption) ([]*registry.Service, error) {
|
||||
m.RLock()
|
||||
defer m.RUnlock()
|
||||
|
||||
var services []*registry.Service
|
||||
for _, records := range m.records {
|
||||
for _, record := range records {
|
||||
services = append(services, recordToService(record))
|
||||
}
|
||||
}
|
||||
|
||||
return services, nil
|
||||
}
|
||||
|
||||
func (m *Registry) Watch(opts ...registry.WatchOption) (registry.Watcher, error) {
|
||||
var wo registry.WatchOptions
|
||||
for _, o := range opts {
|
||||
o(&wo)
|
||||
}
|
||||
|
||||
w := &Watcher{
|
||||
exit: make(chan bool),
|
||||
res: make(chan *registry.Result),
|
||||
id: uuid.New().String(),
|
||||
wo: wo,
|
||||
}
|
||||
|
||||
m.Lock()
|
||||
m.watchers[w.id] = w
|
||||
m.Unlock()
|
||||
|
||||
return w, nil
|
||||
}
|
||||
|
||||
func (m *Registry) String() string {
|
||||
return "memory"
|
||||
}
|
||||
+27
@@ -0,0 +1,27 @@
|
||||
package memory
|
||||
|
||||
import (
|
||||
"errors"
|
||||
|
||||
"go-micro.dev/v4/registry"
|
||||
)
|
||||
|
||||
type memoryWatcher struct {
|
||||
exit chan bool
|
||||
opts registry.WatchOptions
|
||||
}
|
||||
|
||||
func (m *memoryWatcher) Next() (*registry.Result, error) {
|
||||
// not implement so we just block until exit
|
||||
<-m.exit
|
||||
return nil, errors.New("watcher stopped")
|
||||
}
|
||||
|
||||
func (m *memoryWatcher) Stop() {
|
||||
select {
|
||||
case <-m.exit:
|
||||
return
|
||||
default:
|
||||
close(m.exit)
|
||||
}
|
||||
}
|
||||
+40
@@ -0,0 +1,40 @@
|
||||
package memory
|
||||
|
||||
import (
|
||||
"context"
|
||||
|
||||
"go-micro.dev/v4/registry"
|
||||
)
|
||||
|
||||
type servicesKey struct{}
|
||||
|
||||
func getServiceRecords(ctx context.Context) map[string]map[string]*record {
|
||||
memServices, ok := ctx.Value(servicesKey{}).(map[string][]*registry.Service)
|
||||
if !ok {
|
||||
return nil
|
||||
}
|
||||
|
||||
services := make(map[string]map[string]*record)
|
||||
|
||||
for name, svc := range memServices {
|
||||
if _, ok := services[name]; !ok {
|
||||
services[name] = make(map[string]*record)
|
||||
}
|
||||
// go through every version of the service
|
||||
for _, s := range svc {
|
||||
services[s.Name][s.Version] = serviceToRecord(s, 0)
|
||||
}
|
||||
}
|
||||
|
||||
return services
|
||||
}
|
||||
|
||||
// Services is an option that preloads service data.
|
||||
func Services(s map[string][]*registry.Service) registry.Option {
|
||||
return func(o *registry.Options) {
|
||||
if o.Context == nil {
|
||||
o.Context = context.Background()
|
||||
}
|
||||
o.Context = context.WithValue(o.Context, servicesKey{}, s)
|
||||
}
|
||||
}
|
||||
+91
@@ -0,0 +1,91 @@
|
||||
package memory
|
||||
|
||||
import (
|
||||
"time"
|
||||
|
||||
"go-micro.dev/v4/registry"
|
||||
)
|
||||
|
||||
func serviceToRecord(s *registry.Service, ttl time.Duration) *record {
|
||||
metadata := make(map[string]string, len(s.Metadata))
|
||||
for k, v := range s.Metadata {
|
||||
metadata[k] = v
|
||||
}
|
||||
|
||||
nodes := make(map[string]*node, len(s.Nodes))
|
||||
for _, n := range s.Nodes {
|
||||
nodes[n.Id] = &node{
|
||||
Node: n,
|
||||
TTL: ttl,
|
||||
LastSeen: time.Now(),
|
||||
}
|
||||
}
|
||||
|
||||
endpoints := make([]*registry.Endpoint, len(s.Endpoints))
|
||||
for i, e := range s.Endpoints {
|
||||
endpoints[i] = e
|
||||
}
|
||||
|
||||
return &record{
|
||||
Name: s.Name,
|
||||
Version: s.Version,
|
||||
Metadata: metadata,
|
||||
Nodes: nodes,
|
||||
Endpoints: endpoints,
|
||||
}
|
||||
}
|
||||
|
||||
func recordToService(r *record) *registry.Service {
|
||||
metadata := make(map[string]string, len(r.Metadata))
|
||||
for k, v := range r.Metadata {
|
||||
metadata[k] = v
|
||||
}
|
||||
|
||||
endpoints := make([]*registry.Endpoint, len(r.Endpoints))
|
||||
for i, e := range r.Endpoints {
|
||||
request := new(registry.Value)
|
||||
if e.Request != nil {
|
||||
*request = *e.Request
|
||||
}
|
||||
response := new(registry.Value)
|
||||
if e.Response != nil {
|
||||
*response = *e.Response
|
||||
}
|
||||
|
||||
metadata := make(map[string]string, len(e.Metadata))
|
||||
for k, v := range e.Metadata {
|
||||
metadata[k] = v
|
||||
}
|
||||
|
||||
endpoints[i] = ®istry.Endpoint{
|
||||
Name: e.Name,
|
||||
Request: request,
|
||||
Response: response,
|
||||
Metadata: metadata,
|
||||
}
|
||||
}
|
||||
|
||||
nodes := make([]*registry.Node, len(r.Nodes))
|
||||
i := 0
|
||||
for _, n := range r.Nodes {
|
||||
metadata := make(map[string]string, len(n.Metadata))
|
||||
for k, v := range n.Metadata {
|
||||
metadata[k] = v
|
||||
}
|
||||
|
||||
nodes[i] = ®istry.Node{
|
||||
Id: n.Id,
|
||||
Address: n.Address,
|
||||
Metadata: metadata,
|
||||
}
|
||||
i++
|
||||
}
|
||||
|
||||
return ®istry.Service{
|
||||
Name: r.Name,
|
||||
Version: r.Version,
|
||||
Metadata: metadata,
|
||||
Endpoints: endpoints,
|
||||
Nodes: nodes,
|
||||
}
|
||||
}
|
||||
+37
@@ -0,0 +1,37 @@
|
||||
package memory
|
||||
|
||||
import (
|
||||
"errors"
|
||||
|
||||
"go-micro.dev/v4/registry"
|
||||
)
|
||||
|
||||
type Watcher struct {
|
||||
id string
|
||||
wo registry.WatchOptions
|
||||
res chan *registry.Result
|
||||
exit chan bool
|
||||
}
|
||||
|
||||
func (m *Watcher) Next() (*registry.Result, error) {
|
||||
for {
|
||||
select {
|
||||
case r := <-m.res:
|
||||
if len(m.wo.Service) > 0 && m.wo.Service != r.Service.Name {
|
||||
continue
|
||||
}
|
||||
return r, nil
|
||||
case <-m.exit:
|
||||
return nil, errors.New("watcher stopped")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (m *Watcher) Stop() {
|
||||
select {
|
||||
case <-m.exit:
|
||||
return
|
||||
default:
|
||||
close(m.exit)
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user